Firefly Reels — Our Stories. Our Endless Worlds.

Pixel-level tools that cost nothing: is this a sketch or coloured, what is its palette, where are the red/green/blue/yellow pen marks, where are the cuts in a video. Reverse prompting uses a vision model when configured. Audio separation needs the self-hosted endpoint.

Needs: FFMPEG_PATH for the pixel and video tools; ANTHROPIC_API_KEY for model-backed reverse prompting; SELFHOST_ENDPOINT for audio separation. Without it this feature reports that it is unavailable rather than failing silently.

Analyze (top nav, and a tab in every project) runs tools over a file you already have. Pick an asset from your library or paste a URL.

Tool	What you get	Needs
Sketch & colour	line sketch / greyscale / coloured with confidence, palette, warm/cool, dark/bright	FFMPEG_PATH
Reverse prompt	a generation prompt for the image	ANTHROPIC_API_KEY for a real description; otherwise a palette-only description labelled heuristic
Detect marks	pen marks as regions: red = remove, green = keep exactly, blue = change, yellow = attention	FFMPEG_PATH
Shot analysis	every cut with its time and strength, average and median shot length, cuts per minute, pacing (languid / measured / brisk / relentless); saved on the asset	FFMPEG_PATH
Separate audio	vocals, music, sfx, ambience as stems	SELFHOST_ENDPOINT; queued as a generation, about 10 credits

The pixel tools are arithmetic — the same answer every time, no credits. When the thing a tool needs is missing, it says which variable, and nothing is charged.

Analyze — sketch detection, reverse prompt, pen marks, shot analysis, audio separation

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